Roger L Costello, David B. Jacobs. c 2003 The MITRE Corporation Interested in Purchasing a camera · Scenario I am interested in purchasing a camera with a 75-300mm zoom lens size, that has an aperture of 4.5-5.6, and a shutter speed that ranges from 1 /500 sec. to 1.0 sec I launch my personal Web bot"which crawls the Web looking for Web sites that can fulfill my request assume that there exists an owl camera Ontology, which the Web bot can"consult upon its travels across the Web
6 Roger L. Costello, David B. Jacobs. © 2003 The MITRE Corporation. Interested in Purchasing a Camera • Scenario: – I am interested in purchasing a camera with a 75-300mm zoom lens size, that has an aperture of 4.5-5.6, and a shutter speed that ranges from 1/500 sec. to 1.0 sec. – I launch my personal "Web Bot" which crawls the Web looking for Web sites that can fulfill my request. – Assume that there exists an OWL Camera Ontology, which the Web Bot can "consult" upon its travels across the Web
Roger L Costello, David B. Jacobs. c 2003 The MITRE Corporation Is this document relevant? <Photography Store rdfID-"Hunts The Web bot xmhnsrdf"http://www.w3.org/1999/02/22-rdfsyntax-ns#f> <store-location> Malden MA</store-location> <phone>617-555-1234</phone> finds this <catalog rdfparse Type="Collection <SLR rdf: ID="Olympus-OM-10 xmins=htTp://www.camera.org#"> document at a Web site <focal-length>75-300mm zoom/focal-le ngth> <f-stop>4.5-5.6</f-stop> <Lens> <body> <Body> r-spee <min>0.002</min> <max>1.0</max> </shutter-speed> </Body <cost rdf parse Type=Resource"> Is it relevant? <rdf: value>325</rdf: value currency>USD</currency> (Note: SLr= Single Lens <LR> Reflex) </Photography S tore>
7 Roger L. Costello, David B. Jacobs. © 2003 The MITRE Corporation. Is this document relevant? <PhotographyStore rdf:ID="Hunts" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"> <store-location>Malden, MA</store-location> <phone>617-555-1234</phone> <catalog rdf:parseType="Collection"> <SLR rdf:ID="Olympus-OM-10" xmlns="http://www.camera.org#"> <lens> <Lens> <focal-length>75-300mm zoom</focal-length> <f-stop>4.5-5.6</f-stop> </Lens> </lens> <body> <Body> <shutter-speed rdf:parseType="Resource"> <min>0.002</min> <max>1.0</max> <units>seconds</units> </shutter-speed> </Body> </body> <cost rdf:parseType="Resource"> <rdf:value>325</rdf:value> <currency>USD</currency> </cost> </SLR> </catalog> </PhotographyStore> The Web Bot finds this document at a Web site: Is it relevant? (Note: SLR = Single Lens Reflex)